Uppsala-DLR Trojan Survey
Encyclopedia
| 13181 Peneleos 13181 Peneleos 13181 Peneleos is a Jupiter Trojan discovered on September 11, 1996 by the European Southern Observatory., in the Uppsala-DLR Trojan Survey.- External links :*... |
September 11, 1996 |
| September 16, 1996 | |
| September 13, 1996 | |
| 15913 Telemachus 15913 Telemachus 15913 Telemachus is a Jupiter Trojan. It was discovered in the Uppsala-DLR Trojan Survey.- External links :*... |
October 1, 1997 |
| September 15, 1996 | |
| September 15, 1996 | |
| October 1, 1997 | |
| October 1, 1997 | |
| October 6, 1997 | |
| September 12, 1996 | |
| October 1, 1997 | |
| September 13, 1996 | |
| November 26, 1997 | |
| September 10, 1996 | |
| October 6, 1997 | |
| October 25, 1997 | |
| September 11, 1996 | |
| September 13, 1996 | |
| September 15, 1996 | |
| October 27, 1997 | |
| September 13, 1996 | |
| September 14, 1996 | |
| October 6, 1997 | |
| September 11, 1996 | |
| September 13, 1996 | |
| September 11, 1996 | |
| December 2, 1997 | |
| September 11, 1996 | |
| September 11, 1996 | |
| September 15, 1996 | |
| November 27, 1997 | |
| November 27, 1997 | |
| September 13, 1996 | |
| October 26, 1997 | |
| September 15, 1996 | |
| December 4, 1997 | |
| September 10, 1996 | |
| December 4, 1997 | |
| September 10, 1996 | |
| October 6, 1997 | |
| October 26, 1997 | |
| November 26, 1997 | |
| November 30, 1997 |
The Uppsala-DLR Trojan Survey (UDTS) is an effort to study the movements and locations of asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...
s near Jupiter
Jupiter
Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with mass one-thousandth that of the Sun but is two and a half times the mass of all the other planets in our Solar System combined. Jupiter is classified as a gas giant along with Saturn,...
, specifically those in orbit
Orbit
In physics, an orbit is the gravitationally curved path of an object around a point in space, for example the orbit of a planet around the center of a star system, such as the Solar System...
s similar to that of Jupiter (in the Jovian Lagrangian cloud), and those that Jupiter blocks from the Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
. Don't confused it with the Uppsala-DLR Asteroid Survey (UDAS), which started shortly after the UDTS concluded.
This group of about 400 asteroids is called the Trojans, because of the naming scheme
Naming scheme
A naming scheme is a plan for naming objects. In computing, naming schemes are often used for objects connected into computer networks.-Naming schemes in computing:Large networks often use a systematic naming scheme, such as using a location A naming scheme is a plan for naming objects. In...
and each asteroid is named after Greek
Ancient Greece
Ancient Greece is a civilization belonging to a period of Greek history that lasted from the Archaic period of the 8th to 6th centuries BC to the end of antiquity. Immediately following this period was the beginning of the Early Middle Ages and the Byzantine era. Included in Ancient Greece is the...
and Trojan
Troy
Troy was a city, both factual and legendary, located in northwest Anatolia in what is now Turkey, southeast of the Dardanelles and beside Mount Ida...
hero
Hero
A hero , in Greek mythology and folklore, was originally a demigod, their cult being one of the most distinctive features of ancient Greek religion...
es.
The survey was carried out at the Uppsala Astronomical Observatory
Uppsala Astronomical Observatory
The Uppsala Astronomical Observatory is the oldest astronomical observatory in Sweden. It was founded in 1741, though there was a professorial chair of astronomy at the University of Uppsala from 1593 and the university archives include lecture notes in astronomy from the 1480s.In the 18th...
in Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
, in collaboration with DLR, the Deutschen Zentrum für Luft- und Raumfahrt (German Aerospace Center), by Claes-Ingvar Lagerkvist
Claes-Ingvar Lagerkvist
Claes-Ingvar Lagerkvist is a Swedish astronomer at the Uppsala Astronomical Observatory. He is known for his work on the shapes and spin properties of minor planets....
, Gerhard Hahn, Stefano Mottola, Magnus Lundström and Uri Carsenty.
The ESO Schmidt telescope was used to survey 900 square degree
Degree (angle)
A degree , usually denoted by ° , is a measurement of plane angle, representing 1⁄360 of a full rotation; one degree is equivalent to π/180 radians...
s of the Jovian L4 Lagrangian point during the fall of 1996 to identify the asteroids, and additional positions and magnitude data were detected using the 0.6-m Bochum telescope at La Silla Observatory
La Silla Observatory
La Silla Observatory is an astronomical observatory in Chile with three telescopes built and operated by the European Southern Observatory organisation, and several others are partly maintained by ESO...
.
There is some notable controversy over P/1997 T3, one of the objects found in the Uppsala-DLR Trojan Survey, namely an asteroid-like object with a comet
Comet
A comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes also a tail. These phenomena are both due to the effects of solar radiation and the solar wind upon the nucleus of the comet...
-like tail. It is thought that this tail is composed of dust, due to its consistent appearance, and the fact that it is pointing towards the Sun
Sun
The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...
, not away from it.